Home / 3,611.90-5,422.73-2,315.90

Finding the Fourth Proportional to 3,611.90, 5,422.73 and 2,315.90

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Solution

The fourth proportional to 3,611.90, 5,422.73 and 2,315.90 is: 3,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.90 : 5,422.73 = 2,315.90 : x
  2. Step 2: Convert to fraction form
    3,611.90/5,422.73 = 2,315.90/x
  3. Step 3: Cross multiply
    3,611.90x = 5,422.73 × 2,315.90
  4. Step 4: Simplify right side
    3,611.90x = 12,558,500.41
  5. Step 5: Solve for x
    x = 12,558,500.41/3,611.90
  6. Step 6: Final answer
    x = 3,476.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.